General Chemistry I Lab
Exam 2 Review
General Lab Questions:
Describe how to decant a solution. Decanting is a process to separate mixtures. Decanting is just allowing a
mixture of solid and liquid or two immiscible liquids to settle and separate by gravi
The Shapes of Molecules
Lewis Structures - A Lewis structure shows the distribution of outer (valence) electrons in an
atom, molecule, or polyatomic ion. Unshared electrons are shown as dots, bonds as straight lines.
Man made global warming has been some peoples fear for quite a while. The whole theory has
been around since sometime in the 1880's. It was a hypothesus that started off by thinking that burning
fossil fuels would increase t
The Components of Matter
Types of SubstancesA. Elements The basic building blocks of matter. Cannot be broken down into simpler
substances by ordinary means. Examples:
nitrogen _ carbon _ sulfur _
Some elements have symbols derive
Stoichiometry of Formulas and Equations
I. Atomic and Formula Masses
A. Meaning of atomic mass Gives the relative mass of an atom. Q: Relative to what?
Based on the _scale. Most common isotope of _ is assigned a mass of
Three Major Classes of Chemical Reactions
Aqueous SolutionsA. Solute vs. Solvent - A solution consists of 2 parts.
Solute the minor part
Solvent the major part aqueous solutions water as solvent
B. Nonelectrolytes vs. electrolytes
Gases and the Kinetic Molecular Theory
States of Matter (3)
1. Have a definite shape and definite volume.
2. Are generally incompressible.
Reason: Particles are found in a highly ordered crystal structure packed in close together
Thermochemistry: Energy Flow and Chemical Change
A. Basic concepts1. system vs. surroundings
2. state property A property that is path independent. ex. grade yes, distance to
3. basic equation for heat flow
Quantum Theory and Atomic Structure
The Electromagnetic Spectrum
A. Measurables1. wavelength- The distance from crest-to-crest of a wave.
frequency The number of waves passing by per unit of time.
Relation between and for electromagneti
Electron Configuration and Chemical Periodicity
Electronic StructureA. Electron configuration- Indicate by a superscript the number of electrons in each sublevel. Order
of filling (chart)
ex. Give the electron configurations for a. O b. S
1411 Chemistry Lab
Empirical Formula of Compound Cu Cl
Determine the empirical formula of a compound containing copper and chlorine (Cu Cl ). This
experiment is the mixture of two or more elements to determine the